Street Stock 250cc 4-stroke twins

[ducatilover]

vt250f2 or vt250j ?

and do you mean compared to an RG?

Nah, just in the 250 twins class. The vt250f2 had the most power of all the 250 twins but didn't handle as good as the vt250j [spada] I still say the spada is the ideal 250 twin. I've ridden the lot of them and that's why I got the spada. Mind you all the 250 twins are actually wider to sit on than my bros650 was

[gatch]

vt250f2 or vt250j ?

and do you mean compared to an RG?

F2 was the 87 model I think, faired, uglier than the fat naked hairy guy on Borat, has marginally more horse power than the spada but has a narrower usable spread of power. The "j" is the spada I'm sure, although mine was listed on the rego as "k"...

Edit - ha you beat me to it Doug, dirty bastid.

[koba]

Nah, just in the 250 twins class. The vt250f2 had the most power of all the 250 twins but didn't handle as good as the vt250j [spada] I still say the spada is the ideal 250 twin. I've ridden the lot of them and that's why I got the spada. Mind you all the 250 twins are actually wider to sit on than my bros650 was

Yeah, they would probably do homolgated models though.
I've always been interested by spadas, they appeal but just seem too pricey.

[koba]

F2 was the 87 model I think, faired, uglier than the fat naked hairy guy on Borat, has marginally more horse power than the spada but has a narrower usable spread of power. The "j" is the spada I'm sure, although mine was listed on the rego as "k"...

Edit - ha you beat me to it Doug, dirty bastid.

I owned an MC08 whichever model that was, much older I think.
I bought it for a packet of biscuits.
It was a heap of crap when I got it but quite well made.

[ducatilover]

F2 was the 87 model I think, faired, uglier than the fat naked hairy guy on Borat, has marginally more horse power than the spada but has a narrower usable spread of power. The "j" is the spada I'm sure, although mine was listed on the rego as "k"...

Edit - ha you beat me to it Doug, dirty bastid.

Hah I am the rice king! yeah, the f2 made 43hp but only made more power after 11krpm and less torque. Was your one 88 or 89? Your engine number was only 750 off mine

Yeah, they would probably do homolgated models though.
I've always been interested by spadas, they appeal but just seem too pricey.

I paid $3800 for mine 3 and a half years ago. They are the best 250 twin yet they are still shit.

[ducatilover]

I owned an MC08 whichever model that was, much older I think.
I bought it for a packet of biscuits.
It was a heap of crap when I got it but quite well made.

They were the first, vt250f, 134kg and 34hp. Did it rattle? they had a poorly designed oil feed to the cam chain tensioners and rattled like crazy if you ran anything other than mineral oil for an extended period. One way to get around that was to drill the hole out 5 thou

[RDjase]

what is a competitive 4stroke 250? what are the weights and HP of the eligable bikes (for the twin class) ? The current 250 street stock class is open to all 4stroke 250 with no cylinder limit ?




How many 4 cyl 250s are still around? all a bit long in the tooth now arnt they, thrashed to death and not serviced from road use, i had a FZR250 years ago i ended up with on a deal, what a fiddly mongrel thing to work on, no wonder nothing got done to them


the proposed rule changes for this new class are on MNZ web site

[ducatilover]

what is a competitive 4stroke 250? what are the weights and HP of the eligable bikes (for the twin class) ? The current 250 street stock class is open to all 4stroke 250 with no cylinder limit ?




How many 4 cyl 250s are still around? all a bit long in the tooth now arnt they, thrashed to death and not serviced from road use, i had a FZR250 years ago i ended up with on a deal, what a fiddly mongrel thing to work on, no wonder nothing got done to them


the proposed rule changes for this new class are on MNZ web site

I would take a pre 92 cbr250rr mc22 for street stock, bullet proof motor and gear driven cams, very similar in performance to the zxr and 3ln yamahama but it doesn't blow up. competitive 4cyl 250 =140kg dry and 45hp, twin would be 135-140kg dry and 40hp

[RDjase]

I owned an MC08 whichever model that was, much older I think.
I bought it for a packet of biscuits.
It was a heap of crap when I got it but quite well made.

What are the ugly early inboard front disc models? like the MVX

[ducatilover]

What are the ugly early inboard front disc models? like the MVX

vt250fg......urgh

[koba]

They were the first, vt250f, 134kg and 34hp. Did it rattle? they had a poorly designed oil feed to the cam chain tensioners and rattled like crazy if you ran anything other than mineral oil for an extended period. One way to get around that was to drill the hole out 5 thou

It was rattling when it was parked up (apparently), I never put much effort into getting it running, I used the mirrors, gear linkage and a few other bits. It was complete but had just been sitting around too long.

what is a competitive 4stroke 250? what are the weights and HP of the eligable bikes (for the twin class) ? The current 250 street stock class is open to all 4stroke 250 with no cylinder limit ?

Vic Club has specific rules for 250 "Minilight" which includes all 250 four stroke roadbikes.
ZXRs and CBRs seem to excel here.

I don't know about other clubs.

[RDjase]

I would take a pre 92 cbr250rr mc22 for street stock, bullet proof motor and gear driven cams, very similar in performance to the zxr and 3ln yamahama but it doesn't blow up. competitive 4cyl 250 =140kg dry and 45hp, twin would be 135-140kg dry and 40hp

Im not up on the Diesels lol, weird idea for a engine, funny valve things in cylinder heads,

Can you buy a powerband for them 4 strokes

[koba]

Yep, inboard disc!

[ducatilover]

It was rattling when it was parked up (apparently), I never put much effort into getting it running, I used the mirrors, gear linkage and a few other bits. It was complete but had just been sitting around too long.

That would be about right.

Im not up on the Diesels lol, weird idea for a engine, funny valve things in cylinder heads,

Can you buy a powerband for them 4 strokes

Yeah, I have a few here. Big fat fuckers

[Ooky]

weird idea for a engine, funny valve things in cylinder heads,

Can you buy a powerband for them 4 strokes

I know! they have a total waste of a stroke! over sight while developing?
and need a turbo to install a powerband in a 4stroke